Prince Harry revealed how he thinks his late mum Princess Diana is 'jumping for joy somewhere' over his engagement to Meghan Markle in first TV interview since announcing their engagement.

The happy couple sat down with BBC presenter Mishal Husain for their first TV interview since the news of their engagement was revealed - and an emotional Harry said it was days like this he missed his mum 'more than ever.'

Sharing how he think she'd respond to the news, Harry said: "I think she would be over the moon, jumping up and down, you know so excited for me, but then, as I said, would have probably been best friends - best friends with Meghan. "

Prince Harry and Meghan Markle engagement interview live on the BBC Monday 27th November

Harry said Meghan and Diana would have been 'best friends' (Image: BBC)

Meghan reveals the poignant meaning behind her ring (Image: PA)

Harry also revealed the very touching way he made sure his late mum was a part of their celebrations.

Meghan's engagement ring, designed by the Prince himself, featured little diamonds on either side of the main stone 'from his mother's own jewellery collection'.

"To make sure that she's with us on this - on this crazy journey together," explained Harry.

The ring also featured a yellow gold stone - Meghan's favourite - and a stone Harry sourced from Botswana.

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(Image: Daily Mirror)

Meghan shows off her ring (Image: WireImage)

The fifth in line to the British throne joked how he proposed to American actress Meghan last week while he was 'trying to roast a chicken.'

"It is days like - days like today when - when I really miss having [mum] around and miss being able to share the happy news. But you know with the ring and with everything else that's going on I'm sure she's …"

"She's with us," finished Meghan.

Meghan praised Harry's 'incredible' thoughtfulness when it came to picking out the perfect engagement ring for her.

"The inclusion of [stones belonging to Diana] and obviously not being able to meet his mom it's so important to me to - to know that she's a part of this with us," said Meghan.

"And I think in being able to meet his aunts and - and also like Julia and just different people who were so important to his mom, I'm able to, in some way, know a part of her through them and of course through him," she added.

"And it's - it's incredibly special. And you know to be able to have this which sort of links where you come from and Botswana which is important to us and it's - it's perfect."

(Image: PA)

The pair posed for photos in Princess Diana's memorial garden, directly outside the palace, which had white flowers planted this year to mark the 20th anniversary of her death.

It was also one of the princess's favourite parts of the palace grounds.

It is thought Prince Harry would have made the decision to spend this special moment in his life in this garden to keep his mum close, given that she couldn't be a part of it.